201122242 has 8 divisors (see below), whose sum is σ = 301946256. Its totient is φ = 100473492.

The previous prime is 201122237. The next prime is 201122249. The reversal of 201122242 is 242221102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (201122249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40908 + ... + 45559.

It is an arithmetic number, because the mean of its divisors is an integer number (37743282).

Almost surely, 2^201122242 is an apocalyptic number.

201122242 is a deficient number, since it is larger than the sum of its proper divisors (100824014).

201122242 is a wasteful number, since it uses less digits than its factorization.

201122242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87632.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 201122242 is about 14181.7573664197. The cubic root of 201122242 is about 585.8953266196.

Adding to 201122242 its reverse (242221102), we get a palindrome (443343344).

The spelling of 201122242 in words is "two hundred one million, one hundred twenty-two thousand, two hundred forty-two".